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1410 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2006 Jakub Jermar
1410 jermar 3
 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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1784 jermar 29
/** @addtogroup sparc64
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 * @{
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 */
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/** @file
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 */
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1842 jermar 35
#include <arch/drivers/kbd.h>
1896 jermar 36
#include <genarch/ofw/ofw_tree.h>
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#ifdef CONFIG_Z8530
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#include <genarch/kbd/z8530.h>
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#endif
1844 jermar 40
#ifdef CONFIG_NS16550
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#include <genarch/kbd/ns16550.h>
1841 jermar 42
#endif
1920 jermar 43
#include <ddi/device.h>
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#include <ddi/irq.h>
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#include <arch/mm/page.h>
1410 jermar 46
#include <arch/types.h>
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#include <align.h>
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#include <func.h>
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#include <print.h>
1410 jermar 50
 
1896 jermar 51
kbd_type_t kbd_type = KBD_UNKNOWN;
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/** Initialize keyboard.
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 *
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 * Traverse OpenFirmware device tree in order to find necessary
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 * info about the keyboard device.
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 *
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 * @param node Keyboard device node.
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 */
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void kbd_init(ofw_tree_node_t *node)
1410 jermar 61
{
1841 jermar 62
    size_t offset;
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    uintptr_t aligned_addr;
1896 jermar 64
    ofw_tree_property_t *prop;
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    const char *name;
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    name = ofw_tree_node_name(node);
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1909 jermar 69
    /*
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     * Determine keyboard serial controller type.
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     */
1896 jermar 72
    if (strcmp(name, "zs") == 0)
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        kbd_type = KBD_Z8530;
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    else if (strcmp(name, "su") == 0)
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        kbd_type = KBD_NS16550;
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    if (kbd_type == KBD_UNKNOWN) {
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        printf("Unknown keyboard device.\n");
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        return;
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    }
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1909 jermar 82
    /*
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     * Read 'interrupts' property.
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     */
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    uint32_t interrupts;
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    prop = ofw_tree_getprop(node, "interrupts");
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    if (!prop || !prop->value)
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        panic("Can't find \"interrupts\" property.\n");
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    interrupts = *((uint32_t *) prop->value);
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    /*
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     * Read 'reg' property.
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     */
1896 jermar 94
    prop = ofw_tree_getprop(node, "reg");
1909 jermar 95
    if (!prop || !prop->value)
1896 jermar 96
        panic("Can't find \"reg\" property.\n");
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    uintptr_t pa;
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    size_t size;
1921 jermar 100
    inr_t inr;
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    devno_t devno = device_assign_devno();
1896 jermar 102
 
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    switch (kbd_type) {
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    case KBD_Z8530:
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        size = ((ofw_fhc_reg_t *) prop->value)->size;
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        if (!ofw_fhc_apply_ranges(node->parent, ((ofw_fhc_reg_t *) prop->value) , &pa)) {
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            printf("Failed to determine keyboard address.\n");
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            return;
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        }
1912 jermar 110
        if (!ofw_fhc_map_interrupt(node->parent, ((ofw_fhc_reg_t *) prop->value), interrupts, &inr)) {
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            printf("Failed to determine keyboard interrupt.\n");
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            return;
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        }
1896 jermar 114
        break;
1919 jermar 115
 
1896 jermar 116
    case KBD_NS16550:
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        size = ((ofw_ebus_reg_t *) prop->value)->size;
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        if (!ofw_ebus_apply_ranges(node->parent, ((ofw_ebus_reg_t *) prop->value) , &pa)) {
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            printf("Failed to determine keyboard address.\n");
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            return;
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        }
1912 jermar 122
        if (!ofw_ebus_map_interrupt(node->parent, ((ofw_ebus_reg_t *) prop->value), interrupts, &inr)) {
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            printf("Failed to determine keyboard interrupt.\n");
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            return;
1921 jermar 125
        };
1896 jermar 126
        break;
1919 jermar 127
 
1896 jermar 128
    default:
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        panic("Unexpected type.\n");
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    }
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1841 jermar 132
    /*
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     * We need to pass aligned address to hw_map().
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     * However, the physical keyboard address can
1896 jermar 135
     * be pretty much unaligned, depending on the
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     * underlying controller.
1841 jermar 137
     */
1896 jermar 138
    aligned_addr = ALIGN_DOWN(pa, PAGE_SIZE);
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    offset = pa - aligned_addr;
1921 jermar 140
    uintptr_t vaddr = hw_map(aligned_addr, offset + size) + offset;
1841 jermar 141
 
1896 jermar 142
    switch (kbd_type) {
1841 jermar 143
#ifdef CONFIG_Z8530
1896 jermar 144
    case KBD_Z8530:
1921 jermar 145
        z8530_init(devno, inr, vaddr);
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        break;
1841 jermar 147
#endif
1844 jermar 148
#ifdef CONFIG_NS16550
1896 jermar 149
    case KBD_NS16550:
1921 jermar 150
        ns16550_init(devno, inr, vaddr);
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        break;
1841 jermar 152
#endif
1896 jermar 153
    default:
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        printf("Kernel is not compiled with the necessary keyboard driver this machine requires.\n");
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    }
1410 jermar 156
}
1702 cejka 157
 
1784 jermar 158
/** @}
1702 cejka 159
 */